EPSSolve#
Solves the eigensystem.
Synopsis#
Collective
Input Parameter#
eps - eigensolver context obtained from EPSCreate()
Options Database Keys#
-eps_view - print information about the solver used
-eps_view_mat0 - view the first matrix (A)
-eps_view_mat1 - view the second matrix (B)
-eps_view_vectors - view the computed eigenvectors
-eps_view_values - view the computed eigenvalues
-eps_converged_reason - print reason for convergence, and number of iterations
-eps_error_absolute - print absolute errors of each eigenpair
-eps_error_relative - print relative errors of each eigenpair
-eps_error_backward - print backward errors of each eigenpair
Notes#
All the command-line options listed above admit an optional argument specifying the viewer type and options. For instance, use ‘-eps_view_mat0 binary:amatrix.bin’ to save the A matrix to a binary file, ‘-eps_view_values draw’ to draw the computed eigenvalues graphically, or ‘-eps_error_relative :myerr.m:ascii_matlab’ to save the errors in a file that can be executed in Matlab.
See Also#
EPSCreate(), EPSSetUp(), EPSDestroy(), EPSSetTolerances()
Level#
beginner
Location#
Examples#
src/eps/tutorials/ex36.c
src/eps/tutorials/ex2.c
src/eps/tutorials/ex18.c
src/eps/tutorials/ex9.c
src/eps/tutorials/ex1f.F90
src/eps/tutorials/ex29.c
src/eps/tutorials/ex6f.F90
src/eps/tutorials/ex3.c
src/eps/tutorials/ex55.c
src/eps/tutorials/ex31.c
Implementations#
EPSSolve_LOBPCG() in src/eps/impls/cg/lobpcg/lobpcg.c
EPSSolve_RQCG() in src/eps/impls/cg/rqcg/rqcg.c
EPSSolve_CISS() in src/eps/impls/ciss/ciss.c
EPSSolve_XD() in src/eps/impls/davidson/davidson.c
EPSSolve_ARPACK() in src/eps/impls/external/arpack/arpack.c
EPSSolve_BLOPEX() in src/eps/impls/external/blopex/blopex.c
EPSSolve_ChASE() in src/eps/impls/external/chase/chase.c
EPSSolve_Elemental() in src/eps/impls/external/elemental/elemental.cxx
EPSSolve_ELPA() in src/eps/impls/external/elpa/elpa.c
EPSSolve_EVSL() in src/eps/impls/external/evsl/evsl.c
EPSSolve_FEAST() in src/eps/impls/external/feast/feast.c
EPSSolve_PRIMME() in src/eps/impls/external/primme/primme.c
EPSSolve_ScaLAPACK() in src/eps/impls/external/scalapack/scalapack.c
EPSSolve_Arnoldi() in src/eps/impls/krylov/arnoldi/arnoldi.c
EPSSolve_Lanczos() in src/eps/impls/krylov/lanczos/lanczos.c
EPSSolve_LAPACK() in src/eps/impls/lapack/lapack.c
EPSSolve_LyapII() in src/eps/impls/lyapii/lyapii.c
EPSSolve_Power() in src/eps/impls/power/power.c
EPSSolve_Subspace() in src/eps/impls/subspace/subspace.c
Index of all EPS routines Table of Contents for all manual pages Index of all manual pages